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Chemistry · THERMODYNAMICS
हिन्दीMatch List-I with List-II based on mean bond enthalpies at 298 K: List-I (Bond Type) List-II (Mean Bond Enthalpy in kJ mol-1) A \( \text{C}-\text{C} \) I \( 837 \) B \( \text{C}=\text{C} \) II \( 347 \) C \( \text{C}\equiv\text{C} \) III \( 1070 \) D \( \text{C}\equiv\text{O} \) IV \( 611 \) Choose the correct answer from the options given below:
Match List-I with List-II based on mean bond enthalpies at 298 K:
| List-I (Bond Type) | List-II (Mean Bond Enthalpy in kJ mol-1) | ||
|---|---|---|---|
| A | \( \text{C}-\text{C} \) | I | \( 837 \) |
| B | \( \text{C}=\text{C} \) | II | \( 347 \) |
| C | \( \text{C}\equiv\text{C} \) | III | \( 1070 \) |
| D | \( \text{C}\equiv\text{O} \) | IV | \( 611 \) |
Choose the correct answer from the options given below:
Correct answer · Option 4
A-(II), B-(IV), C-(I), D-(III)
Explanation
From Table 5.3(a) & 5.3(b): \( \text{C}-\text{C} = 347\text{ kJ mol}^{-1} \), \( \text{C}=\text{C} = 611\text{ kJ mol}^{-1} \), \( \text{C}\equiv\text{C} = 837\text{ kJ mol}^{-1} \), and \( \text{C}\equiv\text{O} = 1070\text{ kJ mol}^{-1} \). Thus, A-II, B-IV, C-I, D-III.
